Book Tasting Book Group discussion

Now take a moment and look at these quotes from the book:
"People said Ove saw the world in black and white. But she was color. All the color he had."
"Ove had never been asked how he lived before he met her. But if anyone had asked him, he would have answered that he didn't."
"We always think there's enough time to do things with other people. Time to say things to them. And then something happens and then we stand there holding on to words like "if"."

What do these quotes mean to you? What was the author trying to say with these quotes, for he repeated these quotes over and over again?